David Tennant Jean-François Mercier Actor Janet Montgomery Anna Skarbek Actor Anton Lesser Doctor Lapp Actor Burn Gorman Jourdain Actor Tuppence Middleton Gabrielle Actor Radoslaw Kaim August Voss Actor Linda Bassett Malka Rosen Actor Richard Lintern Colonel Lessard Actor Jan Pohl Zoller Actor Richard Teverson Roddy Fitzware Actor Piotr Baumann Maxim Mostov Actor Dan Fredenburgh Armand Actor Ludger Pistor Edvard Uhl Actor Ann Eleonora Jørgensen Olga Musser Actor Nicholas Blane Papa Heiniger Actor Adam Godley Julius Halbach Actor Ellie Haddington Madame Dupin Actor Viktor Rosen Alan Corduner Actor Tusse Silberg Helena Skarbek Actor Julian Harris Duff Cooper Actor Richard Fell Executive Producer Jamie Laurenson Executive Producer Coky Giedroyc Director Weronika Migon Director Kiaran Murray-Smith Director